<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>页面结构分析</title>
</head>
<body>

<header>
  <h2>网页头部</h2>
</header>


<section>
  <h2>网页主体</h2>
</section>


<footer>
  <h2>网页脚步</h2>
</footer>

</body>
</html>